Hat tip to Bruce on finding this. The NHK will broadcast makuuchi bouts live from 4:10am Eastern to 5am! It looks like it’s a Day 1 thing only. Honestly, I want so much traffic they decide to do it again. I will keep my eyes peeled for next weekend action and (hopefully) senshuraku.
Also, the always fantastic Grand Sumo Preview program airs over the next 24 hours on NHK World. Make a point to watch it, as it’s always interesting, and features friend of Tachiai, John Gunning. I am curious which rikishi gets the special coverage this time, and if Raja is further abused in training. Details of when it airs here: https://www3.nhk.or.jp/nhkworld/en/tv/sumo/